Reduction of ring artifacts in cone-beam CT images (医用画像)

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概要

• 論文の詳細を見る

• Cone-beam CT (CBCT) scanners are based on volumetric tomography, using a 2D extended digital array providing an area detector [1]. Compared to traditional CT, CBCT has many advantages, such as less X-ray beam limitation, high image accuracy, Rapid scan time, etc. However, In CBCT images there are always some ring artifacts that appear as rings centred on the rotation axis. Due to the data of the constructed images are corrupted by these ring artifacts, qualitative and quantitative analysis of CBCT images will be compromised. Post processing and application such as image segmentation and registration also turn more complex as the presence of such artifacts. In this paper, a method with a novel region of interest (ROI) building technique is presented. It deals with the reconstructed CBCT image and can effectively reduce such ring artifacts.

• 社団法人電子情報通信学会の論文
• 2008-01-18

著者

• Chen Yen-Wei

  College of Information and Science, Ristumeikan University

• Duan Guifang

  Graduate School of Science and Engineering, Ritsumeikan University

• Han Xianhua

  Graduate School Of Science And Engineering Ritsumeikan University

• Han Xian‐hua

  Ritsumeikan Univ. Kusatsu‐shi Jpn

• Han Xianhua

  Graduate School Of Science And Enginnering Ritumeikan University

• Duan Guifang

  Graduate School Of Science And Engineering Ritsumeikan University

• Duan Guifang

  Graduate School Of Engeneering And Science Ritsumeikan University

• Chen Y‐w

  College Of Information Science And Engineering Ritsumeikan University

• HAN Xianhua

  Colleage of Information Science and Engineering, Ritsumeikan University

• FUJITA Akinori

  Technology Research Laboratory, Shimadzu Corporation

• HIROOKA Ken

  Technology Research Laboratory, Shimadzu Corporation

• UENO Yoshihiro

  Technology Research Laboratory, Shimadzu Corporation

• Hirooka Ken

  Technology Research Laboratory Shimadzu Corporation

• Fujita Akinori

  Technology Research Laboratory Shimadzu Corporation

• Ueno Yoshihiro

  Technology Research Laboratory Shimadzu Corporation

• Han Xian‐hua

  College Of Information Science And Engineering Ritsumeikan University

• Chen Yen-wei

  College Of Information And Science Ristumeikan University

• Duan Guifang

  State Key Laboratory of CAD & CG, Zhejiang University:Graduate School of Science and Engineering, Ritsumeikan University

• Han Xianhua

  College of Information Science and Engineering, Ritsumeikan University

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